Toy using water reactive paper

Details Toy using water reactive paper Toy using water reactive paper

1990-11-26

1992-11-17

Mancene, Gene

Education and demonstration

Means for demonstrating apparatus, product, or surface...

Chalkboard or equivalent means having easily erasable surface

434 81, 434 84, 434 85, 434 87, B43L 100, G09B 1100, G09B 1110

Patent

active

051638460

ABSTRACT:
A toy has a frame with a display area for receiving a water reactive paper. The paper has a brightly colored substrate covered by a surface layer of silica and resin which becomes transparent when wet and opaque when dry so that the bright color does or does not show through depending upon whether the surface is wet or dry. Thus, the paper appears to have disappearing ink.

REFERENCES:
patent: 3581882 (1971-06-01), Bish
patent: 3838520 (1974-10-01), Quenot
patent: 4139965 (1979-02-01), Curry et al.
patent: 4604062 (1986-08-01), Woods
patent: 4836381 (1989-07-01), Edwards et al.
patent: 4836783 (1989-06-01), Harper

Affiliated with

Also associated with

Rating

Toy using water reactive paper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Toy using water reactive paper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toy using water reactive paper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1167837